H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/81
H04N 5/21 (2006.01)
Patent
CA 1302557
ABSTRACT OF THE DISCLOSURE A ghost canceling circuit comprising a Fourier transforming circuit for Fourier transforming a reference waveform contained in the received television signal while converting the analogue signal into digital form, means for holding and outputting a reference waveform Fourier coefficient obtained by Fourier transforming the reference waveform contained in the television signal at the transmission side, a signal processing portion in which the outputted reference waveform Fourier coefficient is divided by the result of the A/D conversion, the divided Fourier coefficient is reverse Fourier transformed, and the reverse Fourier transformed Fourier coefficient is supplied to a transversal filter recognizing it as a tap gain.
593393
Kobayashi Michio
Kobayashi Reiichi
Miyazaki Tetsuro
Sasaki Fumiyoshi
Shiki Tatsuya
Nippon Hoso Kyokai
Riches Mckenzie & Herbert Llp
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